HP 1234, 1242 Hardware DMA System Function, Address Hex System Function Shipping Configuration

	System DMA
Hardware DMA	System Function
0	ES1869 Plug and Play AudioDrive
1	ES1869 Plug and Play AudioDrive
2	Standard Floppy Disk Controller
3	(free)
4	Direct memory access controller
5	(free)
6	(free)
7	(free)

System I/O Address

	System I/O Address
I/O Address (Hex)	System Function (Shipping
	Configuration)
x0000 - x000F	Direct Memory Access Controller
x0020 - x0021	Programmable interrupt controller
x0022 - x0024	Motherboard resources
x0040 - x0043	System timer
x0060 - x0060	Standard 101/102-Key or Microsoft Natural
	Keyboard
x0061 - x0061	System speaker
x0064 - x0064	Standard 101/102-Key or Microsoft Natural
	Keyboard
x0070 - x0071	System CMOS/real time clock
x0080 - x0080	Motherboard resources
x0081 - x008F	Direct memory access controller
x0092 - x0092	Motherboard resources
x00A0 - x00A1	Programmable interrupt controller
x00C0 - x00DF	Direct memory access controller
x00EC - x00EF	Motherboard resources
x00F0 - x00FF	Numeric data processor
x0170 - x0177	Opti Viper Max Dual PCI IDE Controller
x0170 - x0177	Secondary IDE controller (dual fifo)
x01F0 - x01F7	Opti Viper Max Dual PCI IDE Controller
x01F0 - x01F7	Primary IDE controller (dual fifo)